diff --git a/CHANGELOG.md b/CHANGELOG.md
index a0c95207b..0e39affc8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@
 - Added `StoreReplica` gRPC service with endpoints for streaming blocks and proofs ([#1987](https://github.com/0xMiden/node/pull/1987)).
 - Replaced the network monitor's JavaScript dashboard with a server-rendered Maud + HTMX frontend ([#2024](https://github.com/0xMiden/node/pull/2024)).
 - [BREAKING] Removed `CheckNullifiers` endpoint ([#2049](https://github.com/0xMiden/node/pull/2049)).
+- Added RPC validation to reject submitted batches that exceed protocol account or note budgets ([#2037](https://github.com/0xMiden/node/issues/2037)).
 
 ## v0.14.10 (2026-05-29)
 
diff --git a/crates/rpc/src/server/api.rs b/crates/rpc/src/server/api.rs
index c194ac6f4..b27938dae 100644
--- a/crates/rpc/src/server/api.rs
+++ b/crates/rpc/src/server/api.rs
@@ -37,7 +37,13 @@ use miden_protocol::transaction::{
     TxAccountUpdate,
 };
 use miden_protocol::utils::serde::{Deserializable, Serializable};
-use miden_protocol::{MIN_PROOF_SECURITY_LEVEL, Word};
+use miden_protocol::{
+    MAX_ACCOUNTS_PER_BATCH,
+    MAX_INPUT_NOTES_PER_BATCH,
+    MAX_OUTPUT_NOTES_PER_BATCH,
+    MIN_PROOF_SECURITY_LEVEL,
+    Word,
+};
 use miden_tx::TransactionVerifier;
 use miden_tx_batch_prover::LocalBatchProver;
 use tonic::{IntoRequest, Request, Response, Status};
@@ -565,6 +571,8 @@ impl api_server::Api for RpcService {
             )));
         }
 
+        validate_batch_budget(&proposed_batch)?;
+
         // Only allow deployment transactions for new network accounts.
         for tx in proposed_batch.transactions() {
             if tx.account_id().is_network()
@@ -716,6 +724,31 @@ fn strip_output_note_decorators<'a>(
     })
 }
 
+fn validate_batch_budget(batch: &ProposedBatch) -> Result<(), Status> {
+    let accounts = batch.transactions().len();
+    let input_notes = batch
+        .transactions()
+        .iter()
+        .map(|tx| tx.input_notes().num_notes() as usize)
+        .sum::<usize>();
+    let output_notes = batch
+        .transactions()
+        .iter()
+        .map(|tx| tx.output_notes().num_notes())
+        .sum::<usize>();
+
+    if accounts > MAX_ACCOUNTS_PER_BATCH
+        || input_notes > MAX_INPUT_NOTES_PER_BATCH
+        || output_notes > MAX_OUTPUT_NOTES_PER_BATCH
+    {
+        return Err(Status::invalid_argument(format!(
+            "batch exceeds batch budget: max {MAX_ACCOUNTS_PER_BATCH} account updates, {MAX_INPUT_NOTES_PER_BATCH} input notes, and {MAX_OUTPUT_NOTES_PER_BATCH} output notes"
+        )));
+    }
+
+    Ok(())
+}
+
 // LIMIT HELPERS
 // ================================================================================================